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ROLLING TRAIN. No. 388,389. Patented Aug. 28, 1888.

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4 sheets--Sneet 8.

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W8 BANSEN. ROLLING TRAIN.

No. 888,889. Patented Aug. z8, 1888.

4 Sheets-Sheet 4.

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W. BANSEN ROLLING TRAIN.

No. 388,389. Patented Aug. 28, 1888.

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UNITED STATES PATENT OFFICE.

WILHELM BANsEN, or KATTowITz, sILEsIA, rEUssIA, GERMANY.

ROLLING-TRAIN.

SPECIFICATION forming part of Letters Patent No. 388,389,'dated August 28, 1888.

Application filed January 24. 1888. Serial No. 261,771.

(No model.) Patented in Germany J uno 18, 1887, No. 43,041 in Englnnd July 4,1887, No. 9,447; in Beginm July 4, 1887, N0. 78,058; in France July 4, 1887, No. 184,597, and in Luxemburg January To all whom. it may concern:

Be it known that I, WILHELM BANsEN, a subject of the King of Prussia, German Emperor, residing at Kattowitz, Upper Silesia, Kingdom of Prussia, German Empire, engineer, have invented a new and useful Improvement in Rolling-Trains, (for which I have obtained patents in Germany, No. 43,041, bearing date June 18, 1887; in Great Britain, No. 9,447, bearing date July 4, 1887; in Belgium, No. 78,058, dated July 4, 1887; in France No. 184,597, dated July 4, 1887, and in Luxemburg N o. 943, dated January 12, 1888,) of which the following is a specification.

My invention relates to improvements in rolling-trains for the manufacture of hoopiron in which the sets ofrollers are put one behind the other, in order to make hoop-iron of nearly five hundred feet length. The rollingmill is at the same time provided with a smoothing-roll and a polishing-roll, said rolls being so arranged that the rolled hoop-iron leaving the last grooved roll enters the smoothing or dressing roll and then goes to the pol ishing-roll.

A further remarkable improvement in this rolling-mill is that the first iiat grooved roll has its matrices cut in the under roll, while the second roll has its matrices in the upper roll, and the third again in the under roll. The advantages gained by this arrangement are very essential, as hereinafter described.

Another improvement consists in the construction and combination of certain guides. with the rolls, by means of which a tension of the hoop-iron is avoided as soon as the rotation of one of the rolls is changed.

I attain these objects by the mechanism illustrated in the accompanying drawings, in Which- Figure 1 is a vertical section of the mill on the line A B, Fig. 2; Fig. 2, a horizontal section of the same on the line C D, Fig. l. Fig. 3 is a section on the line E F of Figs. 1 and 2, showing the scraper 7 and the polishingrolls 6. Figs. 4, 5, and 6 are views of the grooved rolls. Fig. 7 is a section of a part of the ma chine on the line J K, Fig. 9, on an enlarged scale. Fig. 8 is a sect-ion on the line` G H, Fig. 7. Fig. 9 is a top view of Fig. 7, the upper rolls, with the guiding-levers, being removed; and Fig. 10 shows some details of the machine.

Similar letters refer io similar parts throughout the several views.

The rolling-mill illustrated on the annexed drawings is providedwith three pairs of grooved rolls, 1 2 3, which rest in bearings of the standards 4 4L 4", and are arranged horizontally and. one behind the other, in the usual manner. These rolls are flat grooved rolls with closed grooves, and contain the different grooves for the corresponding sizes, as will be seen in Figs. 4, 5, and 6. The most essential feature in the arrangement of these rolls is that the grooves are so cutin the rolls that the firstpair of rolls, l, has its matrices in the under roll, the second pair, 2, in the upper, and the third pair,3,again in the under roll, by

which construction the turning of the material to be rolled, as also the formation of seams or beards, is completely avoided. Behind these rolls the dressing-rolls 5 and the polishingrolls 6 are situated. Between the last-mentioned rolls the scraper 7 is inserted, which is constructed and can be operated as the common well-known Scrapers.

In order to avoid any damageable tension of the iron between one pair of rolls and the next one when passing through said rolls, I use the hereinafter-described guides. The grooved rolls receive the guides 8 and 9, one arranged above the other, between which the rolled iron is passing. Behind the under guide, 8, a firmlyfastened bridge, 10, is arranged, which leads to the next pair of. rolls. Between the upper guides, 9, the hinge-like fastened guide-levers 11 are fastened, which open upward, as shown in Figs. 7 to 10, in enlarged scale. The speeds of the grooved rolls are t0 each other as the decrease of the sections of the grooves, and remain constant for the rolls 1 2 3 at all sections to be rolled; but the speed of the dressingrolls 5 and the polishing-rolls 6 change at every sec tion. The grooved rolls l, 2, and 3 can there- 95 IOO The success gained by the above-described arrangement is as follows If at any time tensions should occur in the rolled bar during the process of rolling which arise therefrom, that one roll rotates faster than the other. These tensions can easily be removed in lowering the upper roll of the pair of grooved rolls 1, thus diminishing the section of the groove, and in changing the position of the strap on the conical pulley-drums of the rolls 6, so as to lessen the speed of rolls 5. As soon as this is done the iron will bend upward between the grooved rolls 1 and 2, as shown by dotted lines in Fig. 7, aud with it the guide bars or levers 11 will open, whereby it is evident that the iron bar between the said rolls has no tension at all.

The above-described guiding goes to the polishing-rolls 6, and the iron to be polished is conducted to the polishing-roll by means of a bar, 16, which is provided with a hinge and rests on a frame, 17, and goes up and down with the scraper 7. For this reason scraper .'7 and frame 17 are connected by the connectingbars 18. The grooved rolls 1, 2, and 3 rest in bearings which are fixed to the base-plate by means ofrscrews, or in any suitable manner; but the dressing-rolls 5 and the polishing-rolls 6 rest in bearings which can be moved in the longitudinal direction of the axes of the rolls, so that the entire surface of the same can be used for every iiat groove.

Behind the polishing rolls any winding mechanism can be provided in order to wind up the hoop-iron after it leaves the apparatus.

I also employ the above-described mill for the manufacture of iiat iron. In such case I placeY the polishing-roll at a distance of twenty meters behind the dressing-roll. This position of the polishing-roll allows that flat iron, as also hoop iron, can be manufactured on one and the same rolling-mill.

In the latter ease the hoop-iron is only conducted by any suitable means to the polishing-roll, and alter being polished to any winding-up mechanism.

I am aware that prior to my invention rolling-mills have been constructed in which the grooved rolls are put one behind the other. I

therefore do not claim such a construction,

broadly; but

What I do claim as myinvention, and desire to secure by Letters Patent, is-

1. In a rolling mill, the combination of grooved rolls 1, 2, and 3, with a dressing-roll, 5, and a polishing-roll, 6, al1 arranged one behind the other, the lastmentioned rolls 5 and 6 being movable in the direction of their axles, substantially as described and shown.

2. In a rolling-mill, the combination of the grooved rolls 1 2 3 and the dressing-110115 and the polishing-roll 6, with the guides 8 and 9, thelower,8,beingzprovided with afiXed bridge, 10, leading to the next roll, and the upper, 9, with hinge-like fastened guide levers or bars 11, opening upward, for the purpose as described. Y

3. In a rolling mill, the combination of grooved rolls 1 2 3, dressing-rolls 5, polishingrolls, guides 8 9, with cog-wheels 12 and 13 and conical-shaped pulley-drums 14 15, all substantially as described.

4. In a rolling mill, the combination of grooved rolls 1 2 3, cog-wheels 12 18, guides 8 9, dressing-rolls 5, polishing-rolls 6, and conicalshaped pulley-drums 14 15, Awith a scraper, 7, substantially as described and shown.

In witness whereof I have hereunto set my hand in 'presence of two witnesses.

WILHELM BANSEN.

Wi tn esses:

M. GoLDs'rEIN, HANs BANsEN. 

